STL to MYR flight delays & on-time performance
Nonstop flights from St. Louis Lambert International Airport to Myrtle Beach International Airport · 728 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at STL or MYR right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from St. Louis (STL) to Myrtle Beach (MYR) arrived on time 61% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 0% were cancelled, and 11% arrived an hour or more late.
- Southwest Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 10am did best (87% on time); around 4pm did worst (40%).
- Saturday was the most reliable day to fly (68% on time) and Sunday the least (59%).
- The largest source of delay minutes was late-arriving aircraft (60%).
Which airline is most on time from STL to MYR?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Southwest Airlines | 61% | 0.0% | 24 min | 11.5% | 87 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 10am87%23 flights
- 4pm40%43 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday63%0.0% cancelled
- Thursday56%0.0% cancelled
- Friday33%0.0% cancelled
- Saturday68%0.0% cancelled
- Sunday59%0.0% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Late-arriving aircraft60%
- Airline (crew, maintenance, cleaning, fueling)29%
- Air traffic control & airport congestion6%
- Security3%
- Extreme weather3%
Why flights are cancelled
Share of cancellations by reason.
No cancellation causes recorded in this period.
STL to MYR: common questions
- How often are STL to MYR flights on time?
- 61% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from St. Louis to Myrtle Beach cancelled?
- 0.0% of scheduled flights were cancelled (0 of 87).
- How long are typical delays?
- Across all flights the average arrival delay was 24 min (early arrivals count as zero). Flights that were late arrived 57 min behind schedule on average, and 11.5% of flights were an hour or more late.
- How long is taxi time at STL?
- Flights on this route spent 10 min taxiing from the gate to takeoff on average.
Related routes
Return trip: MYR to STL — 75% on time
More flights from St. Louis
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: STL → MYR, nonstop flights by US airlines that report to the DOT. How we calculate this.